In a post-apocalyptic world, daemons of all kinds wander the Earth, hungry for man-flesh. Luckily the human race has some protection: Holy Shield, a secret organization that for thousands of years has fought against daemons in order to preserve the balance between good and evil.

But one day, while on a routine mission, two daemon hunters encounter the vilest daemon ever faced by Holy Shield. As a consequence, they are instructed to find the source of his Evil, and fight all of his slaves before tackling the daemon himself. Thus begins a violent, crazy journey of epic proportions!